-
Adheseal PU15 Polyurethane AdhesiveVendor:
Use Adheseal PU15 for flexible, durable sealing of movement and connection joints up to ±30% and as an adhesive, offering excellent adhesion and weather resistance for confident, long-term performance.- From $11.99
- From $11.99
- Unit price
- per
-
Adheseal PU25 Polyurethane AdhesiveVendor:
Use Adheseal PU25FC for flexible sealing and bonding of movement joints in construction, marine, and manufacturing. It offers ±25% movement, fast curing at 3mm per day, AS/NZS 4020 potable water suitability, and is UV stable.
- From $11.12
- From $11.12
- Unit price
- per
-
Adheseal PU50 Polyurethane SealantVendor:
Use Adheseal PU50FC for high-strength, flexible structural bonding and demanding sealing jobs. It offers Shore A 45 hardness for anti-pick applications, withstands +/- 25% joint movement, and cures at 3mm per 24 hours.
- From $14.96
- From $14.96
- Unit price
- per
-
Everflex PU240 Polyurethane Adhesive and SealantVendor:
Use Adheseal PU-240 for high-strength, flexible sealing and bonding in demanding construction and marine applications. With +/- 25% movement capability and 35 Shore A hardness, it ensures a durable, waterproof, and abrasion-resistant joint.
- From $11.74
- From $11.74
- Unit price
- per
-
Adheseal Megaprene 40GG Polyurethane SealantVendor:
Flexible polyurethane construction sealant for movement joints, façade sealing, and waterproof bonding applications.
- From $11.33
- From $11.33
- Unit price
- per
-
Open Cell Backing Rod - RoundVendor:
Use Adheseal Open Cell Backing Rod to prevent sealant gassing and three-sided adhesion in expansion joints. Its breathable polyurethane foam ensures faster, more complete sealant curing, critical for long-term performance across a wide range of cold and hot pour sealants.
- From $138.36
- From $138.36
- Unit price
- per
-
Open Cell Backing Rod - SquareVendor:
Square open-cell PU backing rod for square/rectangular joints. Sets sealant depth, prevents three-sided adhesion, non-gassing.
- From $3.06
- From $3.06
- Unit price
- per
-
Adheseal Backing Rod Closed Cell - RoundVendor:
Adheseal Closed Cell Backing Rod is a high-quality polyethylene foam filler designed for construction joints, providing excellent support and preventing 3-sided adhesion for sealants.
- From $12.30
- From $12.30
- Unit price
- per
-
Biyseal Bitumen Impregnated FoamVendor:
Biyseal Polyurethane Impregnated Foam delivers a reliable, long-lasting seal for expansion joints and weatherproofing, adapting to various environmental conditions.
- From $134.19
- From $134.19
- Unit price
- per
-
Biyseal Acrylic Impregnated FoamVendor:
Use Biyseal Acrylic Impregnated Foam for immediate, weather-tight sealing of dynamic joints; it offers over 90% elastic recovery and blocks heavy rain at 75% compression.
- $136.58
- $136.58
- Unit price
- per
-
Dowsil 888 Silicone Joint SealantVendor:
Use DOWSIL™ 888 Silicone Joint Sealant for sealing concrete pavement joints, handling up to +100% / -50% movement with unprimed adhesion, and resisting weather and UV exposure.- From $19.40
- From $19.40
- Unit price
- per
-
Dowsil 890-SL Silicone Joint SealantVendor:
Use DOWSIL™ 890-SL for sealing concrete to concrete and concrete to asphalt pavement joints. This self-leveling, ultra-low modulus silicone requires no primer on concrete or asphalt, tolerates +100%/-50% movement, and achieves skin-over in under an hour to minimise traffic disruption.
- From $31.07
- From $31.07
- Unit price
- per
-
Sikaflex Pro Polyurethane Sealant 600ml SausagesVendor:
Use Sikaflex PRO for elastic movement and connection joints in concrete and masonry facades. It handles ±25% movement, is AS/NZS 4020 approved for potable water, and ensures durable, weather-resistant sealing.- From $16.48
- From $16.48
- Unit price
- per
-
Sikaflex Pro Polyurethane Sealant 300ml CartridgesVendor:
Use Sikaflex PRO for elastic sealing of movement and connection joints in concrete and masonry, offering ±25% movement capability and potable water approval for reliable performance.
- From $241.80
- From $241.80
- Unit price
- per
-
Sikaflex 11 FC + Polyurethane Adhesive and SealantVendor:
Sikaflex 11 FC+ is a single-part polyurethane adhesive and sealant that bonds concrete, masonry, wood, metal, glass, and ceramic while handling vertical and horizontal joint sealing. It suits facade joints, perimeter sealing, civil construction, and mixed-substrate bonding where you need movement capacity and a sandable, overpaintable finish.
- From $277.80
- From $277.80
- Unit price
- per
-
Sikaflex Construction AP+ Polyurethane SealantVendor:
Use Sikaflex Construction AP for reliable, elastic sealing of movement and connection joints, particularly on porous substrates. Its ±25% movement capability, non-sag application, and paintability ensure durable, professional finishes for facades and general construction.
- $311.80
- $311.80
- Unit price
- per
-
Bostik Seal 'N' Flex One P390 Polyurethane Sealant 600ml - BlackVendor:
Use Bostik Seal N Flex One P390 for reliable sealing of construction and expansion joints that demand ±50% movement. It's a low modulus, one-component polyurethane sealant, acoustic rated and approved for potable water contact, preventing joint failure in dynamic environments.- From $322.60
- From $322.60
- Unit price
- per
-
Black
-
Grey
-
White
-
Bostik Seal 'N' Flex One P390 Polyurethane Sealant 300ml - GreyVendor:
Use Bostik Seal N Flex One P390 for reliable sealing of construction and expansion joints that demand ±50% movement. It's a low modulus, one-component polyurethane sealant, acoustic rated and approved for potable water contact, preventing joint failure in dynamic environments.
- $355.80
- $355.80
- Unit price
- per
-
Grey
-
White
-
Bostik Seal ‘N’ Flex One Plus P590 Polyurethane Sealant 300mlVendor:
Use Bostik Seal 'N' Flex One Plus P590 for construction and expansion joints needing high movement capability. It offers +100% / -50% joint movement with bubble-free curing and AS/NZS 4020:2018 potable water certification.
- $238.80
- $238.80
- Unit price
- per
-
Bostik Seal ‘N’ Flex One Plus P590 Polyurethane Sealant 600mlVendor:
Use Bostik Seal 'N' Flex One Plus P590 for construction and expansion joints needing high movement capability. It offers +100% / -50% joint movement with bubble-free curing and AS/NZS 4020:2018 potable water certification.
- From $322.60
$310.60- From $322.60
- Unit price
- per
-
Bostik Fireban One Polyurethane SealantVendor:
Use Bostik Fireban One for fire-rated and acoustic sealing of construction joints. It offers up to 4 hours of fire resistance, 50% joint movement capability, and excellent durability, ensuring compliant and lasting performance.
- From $16.73
- From $16.73
- Unit price
- per
-
Gripset Elastoproof B10 / B50Vendor:
Elastoproof B50 is a high-performance joint band for waterproofing detail work at junctions, corners, control and expansion joints. The central “Flexible Zone” accommodates movement in multiple directions with up to 100% elastic recovery, while the fleece edges embed into a wet liquid membrane to create a seamless, durable seal. Designed for trade use in commercial, industrial, and residential wet areas.- From $51.61
- From $51.61
- Unit price
- per
-
RLA Foam FillerVendor:RLAUse RLA Foam Filler for high-yield filling and sealing of irregular gaps and cavities. It expands up to 45 times to form a stable, airtight seal, reducing callbacks from drafts and noise without distorting frames.
- From $20.00
- From $20.00
- Unit price
- per
-
MapePUR Universal Foam M/GVendor:
Use MapePUR Universal Foam M/G for critical thermal and acoustic gap filling around windows, doors, and pipes. It offers 58 dB soundproofing and cures quickly, allowing cutting within 25-30 minutes.- From $16.33
- From $16.33
- Unit price
- per
Frequently Asked Questions
What sealant do I use for a movement joint?
Use a polyurethane sealant for most concrete and masonry movement joints. It stretches and recovers with the joint. Silicone suits glass, aluminium, or wet areas where PU is not compatible. Match the sealant to the substrate and movement before you buy.
What backing rod do I put behind a sealant joint?
Put a foam backing rod in the joint before sealant. Closed-cell foam repels water and suits buried or wet joints. Open-cell foam suits dry internal joints. The rod sets sealant depth and stops it sticking to the back of the joint.
How deep should the sealant go in a movement joint?
Fill the joint to about half its width. A 20 mm joint takes 10 mm of sealant over the backing rod. Too deep and it tears when the joint moves. Too shallow and it splits on top. Check the data sheet for the ratio.
Can I use the same sealant for a construction and a movement joint?
Not always. A construction joint is where new concrete meets old or two pours meet. It needs a sealant that bonds to both faces. A movement joint moves and needs a sealant that stretches. Match the sealant to the joint.
Do I need a fire-rated backing or sealant?
Use fire-rated backing or sealant where the joint passes through a fire-rated wall or floor. Standard foam and sealant will not hold the fire rating. Fireban One and fire-rated backing rods carry that rating here. Check the fire rating you need first.
What do I do before I seal a construction joint?
Make the joint clean, dry, and sound. Remove dust, laitance, oil, and loose material. Check the width and depth so you order enough sealant and the right rod. If the joint is still curing or leaking, fix that first. Sealant won't fix unready joints.